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McXtrace - An X-ray ray-trace simulation package

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McXtrace: Saxs_spheres

[ Identification | Description | Input parameters | Output parameters | Links ]

The Saxs_spheres Component

Sample for Small Angle X-ray Scattering - hard spheres in thin solution, mono disperse.

Identification

  • Site:
  • Author: E. B. Knudsen, P. Willendrup, K. Lefmann, L. Arleth
  • Origin: DTU Fysik
  • Date: 28.10.2010

Description

Sample for use in a SAXS instrument, models hard, monodisperse spheres in thin solution.
The shape of the sample may be a filled box with dimensions
xwidth, yheight, zdepth, a cylinder with dimensions radius and yheight,
a filled sphere with radius R.

Example: Saxs_spheres(R = 20, Phi = 1e-3, Delta_rho = 0.6, sigma_abs = 50, xwidth=0.01, yheight=0.01, zdepth=0.005)

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
sphere_mtrlMaterial datafile from which to find absorption. If none is given absorption is neglected.NULL
RRadius of scattering hard spheres (AA)100
PhiParticle volume fraction (1)1e-3
Delta_rhoExcess scattering length density (fm/AA^3)0.6
xwidthhoriz. dimension of sample, as a width (m)0
yheightvert . dimension of sample, as a height for cylinder/box (m)0
zdepthdepth of sample (m)0
radiusOuter radius of sample in (x,z) plane for cylinder/sphere [m]0
target_x0
target_yposition of target to focus at [m]0
target_z6
target_indexRelative index of component to focus at, e.g. next is +1 [1]0
focus_xwhoriz. dimension of a rectangular area [m]0
focus_yhvert. dimension of a rectangular area [m]0
focus_awhoriz. angular dimension of a rectangular area [deg]0
focus_ahvert. angular dimension of a rectangular area [deg]0
focus_rDetector (disk-shaped) radius (m)0
mu_c5Column of the datafiel which contains absorption coefficients.0

Output parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
shape
prms
prmsp

Links


[ Identification | Description | Input parameters | Output parameters | Links ]

Generated on 2022-02-07 21:31:39


Last Modified: Wednesday, 11-May-2022 22:46:11 CEST
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